A prototype soft robot, which is about the size of a postage stamp, was developed by a group of researchers from China and the US. Its design was inspired by the capabilities of the hardy cockroach. (Picture: Handout)

A prototype soft robot, which is about the size of a postage stamp, was developed by a group of researchers from China and the US. Its design was inspired by the capabilities of the hardy cockroach. (Picture: Handout)